ISHS Acta Horticulturae 768: XXVII International Horticultural Congress - IHC2006: International Symposium on The Role of Postharvest Technology in the Globalisation of Horticulture
STORABILITY OF ORANGE FLESH MELONS TREATED WITH 1-MCP |
| Authors: | R.B. de Melo, R.W. Figueiredo, G.A. Maia, R.E. Alves, E.O. Silva |
| Keywords: | melon, Cucumis melo L., 1-methylcyclopropene, postharvest, conservation, quality |
| Abstract:
Orange flesh melons from the Mossoró-Açu Region, RN, Brazil, were treated with 0, 150, 300 and 600 ppb 1-methylcyclopropene (1-MCP), stored at room temperature of 25±3°C and 90±5% RH and evaluated after intervals of 0, 3, 6, 9, 12, 15, 18 and 21 d. A 4×8 factorial scheme was used, consisting of four 1-MCP and eight evaluations, in completely randomized experimental design, with four replications of one fruit each. Evaluations were carried out for of external and internal appearance, and peel color using; a subjective rating scale; peel and pulp color by colorimetry, mass loss, pulp firmness; pH, total soluble solids (TSS), total titratable acidity (TTA); and total soluble sugar (TSS). For most quality parameters evaluated there was no difference between fruit treated with 1-MCP and controls (Tukey test (p<0.05)). However, shelf-life of Orange Flesh melons stored under room conditions (25±3°C and 90±5% RH) was 15 d while fruit treated with 1-MCP had the best external appearance and hence better commercial acceptance than untreated fruit. Postharvest application of 150 ppb 1-MCP to Orange Flesh melons extended shelf-life to 18 d and to 21 d when 300 and 600 ppb was applied. | |
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